From: Lars Ingebrigtsen <larsi@gnus.org>
To: Adam Porter <adam@alphapapa.net>
Cc: emacs-devel@gnu.org
Subject: Re: Improve `replace-regexp-in-string' ergonomics?
Date: Wed, 22 Sep 2021 10:09:55 +0200 [thread overview]
Message-ID: <87v92tuj3g.fsf@gnus.org> (raw)
In-Reply-To: <87r1dhjc9c.fsf@alphapapa.net> (Adam Porter's message of "Wed, 22 Sep 2021 02:33:03 -0500")
Adam Porter <adam@alphapapa.net> writes:
> Agreed, the name seems too long, and the function's signature is awkward
> (I always have to check the argument list when I use it). Most of the
> time, I don't want to replace with automatic case matching, nor do I
> want to substitute the original matched text, so I have to add the
> FIXEDCASE argument, and then carefully re-read the docstring for LITERAL
> and decide whether I need it, too.
Functions in Emacs are generally on the DWIM side, so we could make a
new `regexp-replace' function be more well-defined. That is, it could
be always-FIXEDCASE and never LITERAL.
> The SUBEXP argument, I'm not so sure about.
Yeah, that one is actually useful. It's used in 5% of the cases in the
Emacs tree...
> Having it at the end would break threading. Having it after the
> replacement would mean having a "nil" much of the time, which wouldn't
> be as pretty. I suppose the third argument could be either a SUBEXP
> or the string, and if a SUBEXP, an optional fourth argument could be
> the string? But since these are likely called often and in loops, I
> suppose that might be undesirable.
The replacement could be a cons like ("foo" . 2) to only replace subexp
2, perhaps. If we allow a bunch of regexp/replacement pairs, then I
guess that'd be necessary anyway.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2021-09-22 8:09 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-22 4:36 Improve `replace-regexp-in-string' ergonomics? Lars Ingebrigtsen
2021-09-22 5:22 ` Yuri Khan
2021-09-22 6:36 ` Lars Ingebrigtsen
2021-09-22 7:47 ` Thierry Volpiatto
2021-09-22 5:24 ` Po Lu
2021-09-22 6:37 ` Lars Ingebrigtsen
2021-09-22 10:56 ` Po Lu
2021-09-22 20:08 ` Lars Ingebrigtsen
2021-09-23 0:11 ` Po Lu
2021-09-22 7:33 ` Adam Porter
2021-09-22 8:09 ` Lars Ingebrigtsen [this message]
2021-09-22 7:51 ` Andreas Schwab
2021-09-22 8:14 ` Augusto Stoffel
2021-09-22 8:21 ` Adam Porter
2021-09-22 18:01 ` Stefan Monnier
2021-09-22 18:24 ` Basil L. Contovounesios
2021-09-22 22:56 ` Adam Porter
2021-09-22 23:53 ` Eric Abrahamsen
2021-09-22 20:06 ` Lars Ingebrigtsen
2021-09-22 10:59 ` Dmitry Gutov
2021-09-22 20:18 ` Lars Ingebrigtsen
2021-09-22 22:23 ` Dmitry Gutov
2021-09-22 23:24 ` [External] : " Drew Adams
2021-09-22 18:14 ` Stefan Monnier
2021-09-22 19:30 ` Mattias Engdegård
2021-09-22 20:22 ` Lars Ingebrigtsen
2021-09-22 20:29 ` Lars Ingebrigtsen
2021-09-23 2:15 ` Stefan Monnier
2021-10-05 16:18 ` Juri Linkov
2021-10-12 6:53 ` Juri Linkov
2021-10-12 12:10 ` Lars Ingebrigtsen
2021-10-12 12:34 ` Stefan Monnier
2021-10-12 12:41 ` Lars Ingebrigtsen
2021-10-12 13:18 ` Lars Ingebrigtsen
2021-10-12 13:32 ` Mattias Engdegård
2021-10-12 15:48 ` Stefan Monnier
2021-10-12 13:33 ` Thierry Volpiatto
2021-10-12 19:16 ` Juri Linkov
2021-10-12 20:44 ` Thierry Volpiatto
2021-10-13 7:57 ` Juri Linkov
2021-10-13 8:41 ` Thierry Volpiatto
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